[gdal-dev] ESRI binary grids problem

[Frank Warmerdam]

Sebastian E. Ovide wrote:
> Hi All
> 
> I've save a ESRI binary grid using ArcMAP (in Binary format) and using 
> gdalinfo it looks like the RRD files are not read... 

Sebastian,

Unfortunately, it is hard for me to figure out much without access to
the dataset.   For a counter example, I'll provide a trimmed gdalinfo
report for an aigrid dataset where the .rrd's are used:

Driver: AIG/Arc/Info Binary Grid
Files: h_dem
        h_dem.aux
        h_dem.rrd
        h_dem/vat.adf
        h_dem/metadata.xml
        h_dem/log
        h_dem/w001001.adf
        h_dem/dblbnd.adf
        h_dem/hdr.adf
        h_dem/w001001x.adf
        h_dem/sta.adf
        h_dem/prj.adf
Size is 3602, 1802
Coordinate System is:
GEOGCS["WGS 84",
...
Origin = (-180.099999999999994,90.100000000000023)
Pixel Size = (0.100000000000000,-0.100000000000000)
Corner Coordinates:
Upper Left  (-180.1000000,  90.1000000) (180d 6' 0.00"W, 90d 6' 0.00"N)
Lower Left  (-180.1000000, -90.1000000) (180d 6' 0.00"W, 90d 6' 0.00"S)
Upper Right ( 180.1000000,  90.1000000) (180d 6' 0.00"E, 90d 6' 0.00"N)
Lower Right ( 180.1000000, -90.1000000) (180d 6' 0.00"E, 90d 6' 0.00"S)
Center      (   0.0000000,   0.0000000) (  0d 0' 0.00"E,  0d 0' 0.00"N)
Band 1 Block=256x4 Type=Int16, ColorInterp=Undefined
   Min=-405.000 Max=7512.000
   NoData Value=-32768
   Overviews: 899x449, 448x223, 223x110, 110x54
   Metadata:
     LAYER_TYPE=athematic

Note the .aux and .rrd files listed in the file list above the grid
directory.  Also note the "Overviews:" listed in the band description.

The error report in yours about not being able to read the contents of
the info directory are not uncommon and I wouldn't expect that to interefere
with the .aux/.rrd access though I'm not sure there is no side effect.  You
might try hiding your info directory temporarily to see if that helps.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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